This fork of the color and size legends example displays separate reusable legend components, each implemented as a D3.js module. The color legend maps a categorical ordinal scale to colored circles, while the size legend (present but commented out) maps a quantitative square-root scale to varying circle radii. Both use D3 v5’s selection API and `scaleOrdinal`/`scaleSqrt` with an SVG `g`-based tick layout, with text labels offset from the shapes.